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Senna | Cassia Angustifolia | Standards

As per Indian Ayurvedic Pharmacopia ( API)

Introduction | Synonyms | Description | Identity Purity & Strength
Constituents | Properties and Action | Important Formulations| Therapeutic Uses


Senna consists of dried leaves of Cassia-angustifolia Vahl (Fam. Leguminosae); a small shrub, 60-75 cm high, found throughout the year, cultivated largely in Southern India, especially in districts of Tinnevelly, Madurai and Tiruchirapally and has also been introduced in Mysore; fully grown, thick bluish colour leaves stripped off by hand, collected and dried in shade for 7-10 days, till assume a yellowish-green colour; graded and then packed into large bales.

Assam. : Sonamukhi
Beng. : Svarnmukhi,Sonapata
Eng.: Indian Senna,Tinnevelly Senna
Guj.: Mindhiaval,Sonamukhi
Hindi.: Sanaya, Hindisana
Kan. : Nelavrika, Sonamukhi,Nelaavare,Nela Aavariake
Kash.: Sna
Mal.: Sunnamukhi, Nilavaka, Chinnukki,Adapatiyan
Mar.: Sonamukhi
Ori.: Sunamukhi
Punj.: Sanapati, Sarnapatta, Sannamakhi
Tam.: Nilapponnai, Avarai
Tel.: Sunamukhi
Urdu.: Senna, Barg-e-Sana

Macroscopic: Leaflets, 2.5-6 cm long and 7-15 mm wide at center, pale yellowish-green, elongated lanceolate, slightly asymmetric at base; margins entire, flat, apex acute with a sharp spine; both surfaces smooth with sparce trichomes; odour, faint but distinctive; taste, mucilaginous and disagreeable but not distinctly bitter.

Microscopic:Transverse section of leaflet through midrib shows an isobilateral structure; epidermal cells, straight walled, containing mucilage; both surfaces bear scattered, unicellular hair, often conical, curved near base, thick-walled, non-lignified; warty cuticle; stomata, paracytic, numerous on both surfaces; mesophyll consists of upper and lower palisade layers with spongy layer in between; palisade cells of upper surface longer than those of lower surface, the latter having wavy anticlinal walls; prismatic crystals of calcium oxalate present in larger veins, and clusters of calcium oxalate crystal distributed throughout the palisade and spongy tissues; midrib biconvex; bundles of midrib and larger veins, incompletely surrounded by a zone pericyclic fibres and a crystal sheath of parenchymatous cells, containing prismatic crystals of calcium oxalate.
Identity Purity & Strength

Foreign matter - Not more than 1 percent,
Total ash - Not more than 15 percent,
Acid-insoluble ash Not more than 21 percent,
Alcohol soluble extractive - Not less than 3 per cent,
Water-soluble extractive - Not less than 25 per cent


 Anthraquinone, glocoside, flavonoids, steroids and resin.

Properties & Action

Rasa : Katu.Tikta,Kasaya
Guna : Laghu, Ruksa,Tiksna
Virya : Usna
Vipaka : Katu
Karma : Recana

Important Formulations

Pancasakara curna, sarivadyasava.

Therapeutic Uses

Vibandha, Udararoga


0.5-2g of the drug in powder form.